Biggin Hill main replacement
We will be replacing 3.9km of clean water pipe in Biggin Hill, South London. Installing new water pipes enables us to provide you with clean drinking water now and for future generations to come.
We're working closely with local authorities to ensure these upgrades are delivered efficiently. Our priority is to minimise disruption to the area.
Watch the video to hear from our project team and local stakeholders on how work is progressing.
When and where we'll be working
Our works started on Main Road from the roundabout junction of Downe Road. We’ll work towards the roundabout junction of Churchill Way.
We began work on Leaves Green Road in May 2025. From September 2025 until January 2026 our work on the main route was paused. This was whilst the local authority completed a road widening scheme in the local area. During this time, we completed mains replacement works on Ashmore Lane and Milking Lane.
Our works on Leaves Green Road restarted in January 2026 and this project will continue until September 2027.
How you'll be affected
Traffic operatives will be on site Monday to Sunday. They will manage the flow of traffic and ease congestion during peak hours.
Access to buildings and driveways will be available for residents and businesses.
You water supply may need to be switched off. A letter will be sent if you are impacted.
Get in touch
If you have any questions, you can call us on 0800 316 9800 or email us at customer.feedback@thameswater.co.uk. Please quote: BB00993673.